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/*
Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
Her Majesty the Queen in Right of Canada (Communications Research
Center Canada)
Copyright (C) 2017
Matthias P. Braendli, matthias.braendli@mpb.li
http://opendigitalradio.org
*/
/*
This file is part of ODR-DabMod.
ODR-DabMod is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.
ODR-DabMod is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with ODR-DabMod. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "ModPlugin.h"
#include "RemoteControl.h"
#include <sys/types.h>
#include <complex>
#include <string>
#include <mutex>
#ifdef __SSE__
# include <xmmintrin.h>
#endif
typedef std::complex<float> complexf;
enum class GainMode { GAIN_FIX = 0, GAIN_MAX = 1, GAIN_VAR = 2 };
class GainControl : public PipelinedModCodec, public RemoteControllable
{
public:
GainControl(size_t framesize,
GainMode mode,
float& digGain,
float normalise,
float varVariance);
virtual ~GainControl();
GainControl(const GainControl&);
GainControl& operator=(const GainControl&);
const char* name() override { return "GainControl"; }
/* Functions for the remote control */
/* Base function to set parameters. */
virtual void set_parameter(const std::string& parameter,
const std::string& value) override;
/* Getting a parameter always returns a string. */
virtual const std::string get_parameter(
const std::string& parameter) const override;
protected:
virtual int internal_process(
Buffer* const dataIn, Buffer* dataOut) override;
size_t m_frameSize;
float& m_digGain;
float m_normalise;
// The following variables are accessed from the RC thread
float m_var_variance_rc;
GainMode m_gainmode;
mutable std::mutex m_mutex;
#ifdef __SSE__
__m128 static computeGainFix(const __m128* in, size_t sizeIn);
__m128 static computeGainMax(const __m128* in, size_t sizeIn);
__m128 static computeGainVar(const __m128* in, size_t sizeIn);
#else
float static computeGainFix(const complexf* in, size_t sizeIn);
float static computeGainMax(const complexf* in, size_t sizeIn);
float static computeGainVar(const complexf* in, size_t sizeIn);
#endif
};
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